简介概要

Preparation of heat-resistant aluminum alloy pipe blanks by multi-layer spray deposition

来源期刊:中国有色金属学报(英文版)2000年第4期

论文作者:袁武华 陈振华 黄培云

文章页码:460 - 464

Key words:heat-resistant aluminum alloy; pipe blanks; spray deposition; rapid solidification

Abstract: A heat-resistant aluminum alloy pipe blank with dimensions of d700/300 mm×1 200 mm was prepared by the multi-layer spray deposition technology. Optical microscopy, X-ray diffractometry and transmission electron microscopy were used to analyze its morphologies and microstructures. The results show that the microstructures of the pipe blank are homogeneous and the precipitates are uniformly-distributed d25~70nm spherical or sphere-like Al12(Fe,V)3Si particles, its mechanical properties at room temperature and 350℃ after densification by extrusion are σb=412MPa,δ=7.6% and σb=187MPa,δ=7.6%, respectively. The analyses indicate that the proper match of the motion rates of atomizer and substrate can produce deposited blanks with uniform thickness and relatively high cooling rate.



详情信息展示

<上一页 1 下一页 >

有色金属在线官网  |   会议  |   在线投稿  |   购买纸书  |   科技图书馆

中南大学出版社 主办 版权声明   电话:0731-88830515 88830516   传真:0731-88710482   Email:administrator@cnnmol.com

互联网出版许可证:新出网证(湘)字005号   湘ICP备09001153号